Provides a source of carbonates, which make up the majority by weight of aragonite; the mineral secreted by reef-building organisms as skeletal material.

Continued addition raises pH until 8.3 is reached, at which point the pH remains unchanged and the alkalinity alone increases.

Over 50% stronger than most competing products.

Free of phosphate, silicate, and organic material.

Formulated by a marine scientist.

Guaranteed Analysis

Alkalinity (min) 11,760 dKH (4,200 meq/L)

Active Ingredients

Inorganic salts of carbonate, bicarbonate, and borate.

Inactive Ingredients

Purified water.

Price: $21.99

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Barrier Reef Aquariums has been proudly service the greater Seattle, Bellevue, Issaquah, Everett and Tacoma areas since 1998. We, the owners, and our staff have a long-standing passion for coral reefs and reef aquariums. We pride ourselves on our depth of knowledge, quality of service and passion for coral reefs and reef aquariums. Barrier Reef is proud to offer some of the rarest and most sought after corals and frags. We also provide a variety of aquarium servicing, design and maintenance.